class/cross: add automatic dev package cross RPROVIDES
class/cross: add automatic dev package cross RPROVIDES

But... We really should try to get of rid of this cross_fixup_provides
stuff, or at least dramatically reduce it in favour of using the
auto-package-* stuff instead.

hundeboll/core,hundeboll/core,sknsean/core,diorcety/oe-lite-core,diorcety/oe-lite-core,sknsean/core,sknsean/core,sknsean/core,sknsean/core,hundeboll/core,hundeboll/core